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CVE-2014-4971

51
FAUCET Score

CVE-2014-4971 is a critical privilege escalation vulnerability affecting Microsoft Windows XP SP3. It stems from improper address validation in the MQAC.sys and BthPan.sys drivers, allowing local attackers to write to arbitrary memory locations. With a CVSS score of 7.2, this vulnerability is easily exploitable locally with low complexity, leading to complete compromise of confidentiality, integrity, and availability. While not on the KEV catalog, multiple public exploits exist, including Metasploit modules and ExploitDB entries, indicating readily available attack tools. Community discussion, though limited, confirms awareness of this issue.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

AV:L/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
23.05%
Probability of exploitation in next 30 days
EPSS Percentile
97.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: MS14-062 Microsoft Bluetooth Personal Area Networking (BthPan.sys) Privilege Escalation · Jul 18, 2014
ExploitDB: EDB-34982 · Oct 15, 2014
This CVE's current EPSS score of 0.2305 is in the 99th percentile among its peer group of 3,241 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blogs.technet.com / b/srd/archive/2014/10/14/accessing-risk-for-the-october-2014-security-updates.aspx
Vendor Advisory
packetstormsecurity.com / files/127535/Microsoft-XP-SP3-BthPan.sys-Arbitrary-Write-Privilege-Escalation.html
packetstormsecurity.com / files/127536/Microsoft-XP-SP3-MQAC.sys-Arbitrary-Write-Privilege-Escalation.html
packetstormsecurity.com / files/128674/Microsoft-Bluetooth-Personal-Area-Networking-BthPan.sys-Privilege-Escalation.html
ExploitVDB Entry
docs.microsoft.com / en-us/security-updates/securitybulletins/2014/ms14-062
seclists.org / fulldisclosure/2014/Jul/96
Exploit
seclists.org / fulldisclosure/2014/Jul/97
Exploit
secunia.com / advisories/60974
Permissions Required
korelogic.com / Resources/Advisories/KL-001-2014-002.txt
Exploit
korelogic.com / Resources/Advisories/KL-001-2014-003.txt
Exploit
exploit-db.com / exploits/34112
Exploit
exploit-db.com / exploits/34131
exploit-db.com / exploits/34982
Exploit
osvdb.org / 109387
Broken Link
securityfocus.com / archive/1/532843/100/0/threaded
securityfocus.com / archive/1/532844/100/0/threaded
securityfocus.com / bid/68764
securitytracker.com / id/1031025
Third Party AdvisoryVDB Entry